qcacld-3.0: Add CDS specific MC timer

Add MC timer API's in CDS.

Change-Id: Idbb10f7d2a00ad8e4620b07275c610d21f699999
CRs-Fixed: 981188

core/cds/inc/cds_mc_timer.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2014-2016 The Linux Foundation. All rights reserved.
+ *
+ * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
+ *
+ *
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This file was originally distributed by Qualcomm Atheros, Inc.
+ * under proprietary terms before Copyright ownership was assigned
+ * to the Linux Foundation.
+ */
+
+/**
+ * DOC: cds_mc_timer.h
+ *
+ * Connectivity driver services public API
+ *
+ */
+
+#if !defined(__CDS_MC_TIMER_H)
+#define __CDS_MC_TIMER_H
+
+void cds_linux_timer_callback(unsigned long data);
+
+#endif /* __CDS_MC_TIMER_H */

core/cds/src/cds_mc_timer.c

@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2014-2016 The Linux Foundation. All rights reserved.
+ *
+ * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
+ *
+ *
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This file was originally distributed by Qualcomm Atheros, Inc.
+ * under proprietary terms before Copyright ownership was assigned
+ * to the Linux Foundation.
+ */
+
+/**
+ * DOC: cds_mc_timer.c
+ * Connectivity driver services timer APIs
+ */
+
+#include <qdf_mc_timer.h>
+#include "cds_mc_timer.h"
+#include <wlan_qct_sys.h>
+#include <qdf_trace.h>
+#include "cds_mq.h"
+
+/**
+ * cds_linux_timer_callback() - timer callback, gets called at time out.
+ * @data: unsigned long, holds the timer object.
+ *
+ * Return: None
+ */
+void cds_linux_timer_callback(unsigned long data)
+{
+	qdf_mc_timer_t *timer = (qdf_mc_timer_t *)data;
+	cds_msg_t msg;
+	QDF_STATUS status;
+
+	qdf_mc_timer_callback_t callback = NULL;
+	void *user_data = NULL;
+	QDF_TIMER_TYPE type = QDF_TIMER_TYPE_SW;
+
+	QDF_ASSERT(timer);
+
+	if (timer == NULL) {
+		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
+			  "%s Null pointer passed in!", __func__);
+		return;
+	}
+
+	qdf_spin_lock_irqsave(&timer->platform_info.spinlock);
+
+	switch (timer->state) {
+	case QDF_TIMER_STATE_STARTING:
+		/* we are in this state because someone just started the timer,
+		 * MC timer got started and expired, but the time content have
+		 * not been updated this is a rare race condition!
+		 */
+		timer->state = QDF_TIMER_STATE_STOPPED;
+		status = QDF_STATUS_E_ALREADY;
+		break;
+
+	case QDF_TIMER_STATE_STOPPED:
+		status = QDF_STATUS_E_ALREADY;
+		break;
+
+	case QDF_TIMER_STATE_UNUSED:
+		status = QDF_STATUS_E_EXISTS;
+		break;
+
+	case QDF_TIMER_STATE_RUNNING:
+		/* need to go to stop state here because the call-back function
+		 * may restart timer (to emulate periodic timer)
+		 */
+		timer->state = QDF_TIMER_STATE_STOPPED;
+		/* copy the relevant timer information to local variables;
+		 * once we exits from this critical section, the timer content
+		 * may be modified by other tasks
+		 */
+		callback = timer->callback;
+		user_data = timer->user_data;
+		type = timer->type;
+		status = QDF_STATUS_SUCCESS;
+		break;
+
+	default:
+		QDF_ASSERT(0);
+		status = QDF_STATUS_E_FAULT;
+		break;
+	}
+
+	qdf_spin_unlock_irqrestore(&timer->platform_info.spinlock);
+
+	if (QDF_STATUS_SUCCESS != status) {
+		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
+			  "TIMER callback called in a wrong state=%d",
+			  timer->state);
+		return;
+	}
+
+	qdf_try_allowing_sleep(type);
+
+	if (callback == NULL) {
+		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
+			  "%s: No TIMER callback, Could not enqueue timer to any queue",
+			  __func__);
+		QDF_ASSERT(0);
+		return;
+	}
+
+	QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_INFO,
+		  "TIMER callback: running on MC thread");
+	/* serialize to the MC thread */
+	sys_build_message_header(SYS_MSG_ID_MC_TIMER, &msg);
+	msg.callback = callback;
+	msg.bodyptr = user_data;
+	msg.bodyval = 0;
+
+	if (cds_mq_post_message(CDS_MQ_ID_SYS, &msg) == QDF_STATUS_SUCCESS)
+		return;
+	QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
+		  "%s: Could not enqueue timer to any queue", __func__);
+	QDF_ASSERT(0);
+}